4.3.1. ID Register, SYS_ID

The SYS_ID register at 0x10000000 is a read-only register that identifies the board and FPGA.

Figure 4.2 shows the register bit assignment.

Figure 4.2. SYS_ID register

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The function of the register bits are shown in Table 4.6. The register value depends on the image loaded into the FPGA.

Table 4.6. SYS_ID register bit assignments

Bits

Access

NameReset

Description

[31:28]

Read-onlyREV

Board revision:

0x0 = Rev A

0x1 = Rev B

0x2 = Rev C

[27:16]

Read-onlyHBI0x178

HBI board number (0178)

[15:12]

Read-onlyBUILD

Build variant of board (from BOM) 0xF: all builds

[11:8]

Read-onlyARCH0x5

Bus architecture

0x4 = AHB

0x5 = AXI

[7:0]

Read-onlyFPGA

FPGA build


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